Keep running it backwards and forwards Ryan and you'll have more success with a hammer.
A cut in the glass is not really a cut, it is a score, a weakening, and you will not create that with multiple cuts.
Not only that, you promply stuff up the cutter.
I use those oil filled ones, and as long as you keep the reservoir filled you should have no problems. I use 1/2 and 1/2 engine oil and kerosine.
Clean the area where the line is to be marked, make sure that it is dry, be confident, hold tour straight edge firmly, and make the cut in one stroke.
Barrie is the best to tell you which is the top for a cutter.
Mine cost about $75.00